// 清除打印log
function webpackChain(chain) {
  if (process.env.VUE_APP_CLEAR_LOG) {
    chain.merge({
      optimization: {
        minimizer: [{
          options: {
            terserOptions: {
              compress: { drop_console: true }
            }
          }
        }]
      }
    });
  }
}

const config = {
  projectName: 'business-college',
  date: '2020-10-13',
  designWidth: 750,
  deviceRatio: {
    640: 2.34 / 2,
    750: 1,
    828: 1.81 / 2
  },
  sourceRoot: 'src',
  outputRoot: 'dist',
  plugins: [],
  defineConstants: {
  },
  copy: {
    patterns: [
    ],
    options: {
    }
  },
  framework: 'react',
  mini: {
    postcss: {
      pxtransform: {
        enable: true,
        config: {

        }
      },
      url: {
        enable: true,
        config: {
          limit: 1024 // 设定转换尺寸上限
        }
      },
      cssModules: {
        enable: false, // 默认为 false，如需使用 css modules 功能，则设为 true
        config: {
          namingPattern: 'module', // 转换模式，取值为 global/module
          generateScopedName: '[name]__[local]___[hash:base64:5]'
        }
      }
    },
    webpackChain,
  },
  h5: {
    publicPath: '/',
    staticDirectory: 'static',
    postcss: {
      autoprefixer: {
        enable: true,
        config: {
        }
      },
      cssModules: {
        enable: false, // 默认为 false，如需使用 css modules 功能，则设为 true
        config: {
          namingPattern: 'module', // 转换模式，取值为 global/module
          generateScopedName: '[name]__[local]___[hash:base64:5]'
        }
      }
    }
  },
  webpackChain,
}

module.exports = function (merge) {
  // 混入参数
  const ENV_CONFIG = Object.keys(process.env).reduce(function (obj, key) {
    if (key.startsWith('REACT_APP')) obj[key] = JSON.stringify(process.env[key]);
    return obj;
  }, {});
  if (process.env.NODE_ENV === 'development') {
    return merge({}, config, require('./dev'), { env: ENV_CONFIG });
  }
  return merge({}, config, require('./prod'), { env: ENV_CONFIG });
}
